/Engine/Plugins/Runtime/GeometryProcessing/Source/DynamicMesh/Public/Selections/GeometrySelectionUtil.h
Call VertexFunc for each selected Mesh element (vertex/edge/tri) in the set of polygroup faces/edges/corners specified by GroupSelection (relative to GroupTopology parameter) ApplyTransform will be applied to Vertex Positions before calling VertexFunc
namespace UE { namespace Geometry { bool UE::Geometry::EnumeratePolygroupSelectionVertices ( const [FGeometrySelection](API\Plugins\DynamicMesh\Selections\FGeometrySelection) & GroupSelection, const [UE::Geometry::FDynamicMesh3](API\Runtime\GeometryCore\DynamicMesh\FDynamicMesh3) & Mesh, const [FGroupTopology](API\Plugins\DynamicMesh\FGroupTopology) * GroupTopology, const FTransform & ApplyTransform, [TFunctionRef](API\Runtime\Core\GenericPlatform\TFunctionRef)< void(uint64, const FVector3d &)> VertexFunc ) } }